Extension type punching die
By designing an extended punching die and utilizing a support frame and gap structure, the problem of the skin being unable to be completely separated from the product was solved, achieving smooth shearing of the skin and cost reduction.
Patent Information
- Application Number
- CN202422635793.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-30
AI Technical Summary
During the product punching process, the skin cannot be completely separated from the product, resulting in a local wire-like connection, which increases the extra process and cost of removing the skin.
An extended punching die is designed, which includes an upper die assembly and a lower die assembly. The top of the lower punch is a support frame structure, which fits the bottom surface of the workpiece. The diameter of the hollow inner cavity gradually increases. The upper punch can be extended into the lower punch. The gap between the support frame and the die is filled with the lower part of the workpiece, and the gap distance is 10%-20% of the punching thickness of the workpiece.
It realizes bidirectional shearing of the product's stress-bearing surface, and the skin is smoothly sheared off, which simplifies the process and reduces costs.
Smart Images
Figure CN223382383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molds, in particular to an insertion-type punching mold. Background Art
[0002] refer to Figure 1 During punching production, the product is limited by the product itself, and the stress-bearing surface of the rod is a pit, which is far away from the punching surface. When the skin is punched, there is no support on the lower surface of the skin, which makes it impossible to completely separate the skin from the product, forming a local wire-drawn connection. Removing the skin will add extra processes and increase costs.
[0003] Therefore, it is necessary to provide a new technical solution. Utility Model Content
[0004] In order to solve the technical problems existing in the prior art, the utility model discloses an insert-type punching die, and the specific technical solution is as follows:
[0005] The utility model provides an insertion punching die, comprising an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper punch, and the lower die assembly comprises a die and a lower punch arranged in a die cavity of the die.
[0006] The top of the lower punch is provided as a support frame structure, and the top surface of the support frame is in contact with the bottom surface of the part to be punched in the workpiece.
[0007] A gap is provided between the upper punch and the lower punch.
[0008] Furthermore, a hollow inner cavity is provided in the middle of the lower punch, the diameter of the inner cavity of the lower punch gradually increases from top to bottom, and the upper punch can extend downward into the inner cavity of the lower punch.
[0009] Furthermore, the support frame is in a continuous or discontinuous annular shape.
[0010] Furthermore, the top surface and outer side surface of the support frame are respectively attached to the bottom surface of the part to be punched in the workpiece and the side surface connected to the bottom surface, a gap is provided between the support frame and the die, and the lower part of the workpiece is filled in the gap between the support frame and the die.
[0011] Furthermore, the gap distance between the upper punch and the lower punch is 10%-20% of the punching thickness of the workpiece.
[0012] The utility model has the following beneficial effects:
[0013] The utility model provides an insertable punching die, which makes the surface of the product bearing the force conform to the shape of the inner cavity of the product. When the punching force is applied, a bidirectional shearing surface is formed, so that the skin is smoothly sheared off. The utility model has a simple structure and an ingenious design, and is easy to manufacture and modify.
[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 It is a structural diagram of a punching die in the prior art.
[0017] Figure 2 It is a structural schematic diagram of the insertion punching die provided in an embodiment of the utility model. DETAILED DESCRIPTION
[0018] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.
[0019] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, "plurality" means two or more, unless otherwise expressly and specifically defined.
[0020] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0021] The utility model discloses a punching die with a plug-in design. Figure 1 and Figure 2 The present invention comprises an upper die assembly and a lower die assembly. The upper die assembly comprises an upper punch 1, and the lower die assembly comprises a die 2 and a lower punch 3 disposed within the die cavity of the die 2. The top of the lower punch 3 is provided with a support frame 31 structure, and the top surface of the support frame 31 is in contact with the bottom surface of the portion to be punched in the workpiece 4. A gap is provided between the upper punch 1 and the lower punch 3.
[0022] A hollow inner cavity is provided in the middle of the lower punch 3 , and the diameter of the inner cavity of the lower punch 3 gradually increases from top to bottom. The upper punch 1 can extend downward into the inner cavity of the lower punch 3 .
[0023] The support frame 31 is in a continuous or discontinuous ring shape.
[0024] The top surface and outer side surface of the support frame 31 are respectively attached to the bottom surface of the part to be punched in the workpiece 4 and the side surface connected to the bottom surface. A gap is provided between the support frame 31 and the die 2, and the lower part of the workpiece 4 is filled in the gap between the support frame 31 and the die 2.
[0025] The gap distance between the upper punch 1 and the lower punch 3 is 10%-20% of the punching thickness of the workpiece 4. More preferably, the gap distance between the upper punch 1 and the lower punch 3 is 15% of the punching thickness of the workpiece 4.
[0026] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.
[0027] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify and modify the above embodiments within the scope of the present invention.
Claims
1. A plug-in punching die, comprising an upper die assembly and a lower die assembly, characterized in that: The upper die assembly includes an upper punch, and the lower die assembly includes a die and a lower punch disposed in a die cavity of the die. The top of the lower punch is provided as a support frame structure, and the top surface of the support frame is in contact with the bottom surface of the part to be punched in the workpiece. A gap is provided between the upper punch and the lower punch.
2. The insertion punching die according to claim 1, characterized in that: A hollow inner cavity is provided in the middle of the lower punch, and the diameter of the inner cavity of the lower punch gradually increases from top to bottom. The upper punch can extend downward into the inner cavity of the lower punch.
3. The insertion punching die according to claim 2, characterized in that: The support frame is in a continuous or discontinuous annular shape.
4. The insertion punching die according to claim 3, characterized in that: The top surface and outer side surface of the support frame are respectively attached to the bottom surface of the part to be punched in the workpiece and the side surface connected to the bottom surface. A gap is set between the support frame and the die, and the lower part of the workpiece is filled in the gap between the support frame and the die.
5. The insertion punching die according to claim 2, characterized in that: The gap distance between the upper punch and the lower punch is 10%-20% of the punching thickness of the workpiece.